Data/hora: 02/06/2024 06:22:36

Biblioteca(s): | Embrapa Algodão; Embrapa Semiárido.
Data corrente: | 05/09/2022
Data da última atualização: | 04/02/2023
Autoria: | JOVINO, R. S.; SILVA, T. R. da; RODRIGUES, R. T.; CARVALHO, J. R. de S.; CUNHA, J. B. de A.; LIMA, L. M. de; SANTOS, R. C. dos; SANTOS, C. E. de R. e S.; RIBEIRO, P. R. de A.; FREITAS, A. D. S. de; MARTINS, L. M. V.; FERNANDES JUNIOR, P. I.
Afiliação: | RAPHAEL SILVA JOVINO, Universidade Estadual da Paraíba; THAÍSE ROSA DA SILVA, UNIVASF; RUTH TEREZINHA RODRIGUES, UNIVASF; JACKSON RAFAEL DE SÁ CARVALHO, Universidade Estadual de Feira de Santana; JUSSARA BARBOZA DE ALENCAR CUNHA, UNEB/DTCS; LIZIANE MARIA DE LIMA, CNPA; ROSEANE CAVALCANTI DOS SANTOS, CNPA; CAROLINA ETIENNE DE ROSÁLIA E SILVA SANTOS, UFRPE; PAULA ROSE DE ALMEIDA RIBEIRO, Bolsista CNPq; ANA DOLORES SANTIAGO DE FREITAS, UFRPE; LINDETE MÍRIA VIEIRA MARTINS, UNEB/DTCS; PAULO IVAN FERNANDES JUNIOR, CPATSA.
Título: | Elite Bradyrhizobium strains boost biological nitrogen fixation and peanut yield in tropical drylands.
Ano de publicação: | 2022
Fonte/Imprenta: | Brazilian Journal of Microbiology, v. 53, p. 1623-1632, 2022.
DOI: | https://doi.org/10.1007/s42770-022-00792-4
Idioma: | Inglês
Conteúdo: | Peanut (Arachis hypogaea L.) is an important crop for the family-based systems in the tropics, mainly in Brazil. In the Brazilian drylands, peanuts are cropped in low technological systems, and cheap and efficient technologies are needed to improve crop yield and sustainability. Despite this importance, few data are available on selecting efficient peanut rhizobia in experiments under different edaphoclimatic conditions. This work evaluated the agronomic efficiency and the biological nitrogen fixation (BNF) by two elite Bradyrhizobium strains under four different fields in the Brazilian semiarid region. We compared a new efficient strain Bradyrhizobium sp. ESA 123 with the reference strain B. elkanii SEMIA 6144, currently used in peanut rhizobial inoculants in Brazil. Besides the inoculated treatments, two uninoculated controls were assessed (with and without 80 kg ha&#8722;1 of N-urea). The BNF was estimated by the &#948;15N approach in three out of four field assays. BNF contribution was improved by inoculation of both Bradyrhizobium strains, ranging from 42 to 51% in Petrolina and 43 to 60% in Nossa Senhora da Glória. Peanuts? yields benefited from the inoculation of both strains and N fertilization in all four assays. Nevertheless, the results showed the efficiency of both strains under different edaphoclimatic conditions, indicating the native strain ESA 123 as a potential bacterium for recommendation as inoculants for peanuts in Brazil, mainly in drylands.
Palavras-Chave: | Elite Bradyrhizobium; FBN; Inoculação de sementes; Rhizobia; Seleção de cepas.
Thesagro: | Amendoim; Arachis Hypogaea; Fixação de Nitrogênio; Inoculante.
Thesaurus Nal: | Arachis hypogaea subsp. hypogaea; Peanuts; Rhizobiaceae; Seed inoculation.
Categoria do assunto: | G Melhoramento Genético
Registro original: | Embrapa Algodão (CNPA)

Exemplares:

CPATSA - (59971-1) - UPC - AP - DD -  -  -  - DIS
CNPA - (28997-1) - UPC - AP - DD -  -  -  - DIS